1)你知道是什么引起火灾吗？

(cause n.)

(cause v.)

2)什么使他改变主意？

3)事故的起因是司机开车太快

4)恐怕我给你带来很多麻烦。

2. illnesses, related to smoking tobacco, ...=illnesses,

smoking tobacco

▲be related to ...与......有关系，与...相连

1) The police are trying to find out (与那起事故有关联的人)

2) 我和他没有任何关系。

Reading and vocabulary.

1. a drug addict

▲addict n. 对（药物等）上瘾的人，瘾君子 v. 嗜好，上...的瘾，常用于be/get/become

addicted to sth. / doing sth. 沉溺于；醉心于...，对...成瘾，

adj. 对...上瘾的；addiction n. 瘾；入迷

1）他如此迷恋网络，以致于考试不及格。

2）他正在书房里聚精会神地看书。

2. offer vt. 提出，给予，出...价

▲offer to do sth. （主动）提出做某事。

offer sth. to sb.

offer sb. sth.

▲offer some money for sth. 出价...买...

1）They decided to offer the job to Tom.

2）He offered 10,000 dollars for the car.